美登科技龙虎榜数据（12月19日）

Group 1 - The stock of Meideng Technology (838227) increased by 19.64% with a turnover rate of 18.61% and a trading volume of 1.59 billion yuan, showing a price fluctuation of 38.34% throughout the day [1] - The stock was listed on the North Exchange's watchlist due to its price fluctuation reaching 38.34%, with a total net selling amount of 17.49 million yuan from brokerage seats [3] Group 2 - The top five brokerage seats involved in trading accounted for a total transaction amount of 58.56 million yuan, with a buying transaction amount of 20.53 million yuan and a selling transaction amount of 38.03 million yuan, resulting in a net selling amount of 17.49 million yuan [2][3]